Dust collector and separator.



No. 65|,775. Patented lune I2, |900.l A. W. BANISTER.. DUST COLLECTOR ANDSEPARATUB. (Application mea Aug. so, 18991 (No Modal.)

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UNITED STATES PATENT OFFICE.

ARTHUR NV. BANISTER, OF BOSTON, MASSACHUSETTS.

DUST COLLECTOR AND SEPRATOR.

SPECIFICATIGN forming part of Letters Patent No. 651,775, dated June 12, 1900. Application filed August 30. 1899. Serial No. 728,928. (No model.)

T0 all whom it may concern.-

Beit known that l, ARTHUR W. BANisTER, of Boston, in the county of Suiolk and State ofy Massachusetts, have invented certain new and useful Improvements in Dust Collectors and Separatore, of which the followingisa description sufficiently full, clear, and exact to enable those skilled in the art to which it appertains, or with which it is most nearly connected, to make and use the same.

The present vinvention relates to that type of dust collectors and separators shown and described in Patent No. 600,300, granted to me March 8, 1898; and the prime object in the present case is to provide for classifyingv the usable products recovered-as, for instance, shavings and sawdust-when the invention is employed in connection with woodworking plants. The separation and recovery of the products are effected by a system of deflection, the current of dust-laden air and other matter entering the separator laterally and impinging against a downward deflector and also encountering lateral deflectors in association with which and with the downward deflector means are employed for classifying the materials, the different grades so recovered being separately discharged.

With the above-stated object in view the invention consists in certain novel features of construction and combinations of parts, the essential elements of which are recited in the appended claims, and a preferred form of embodiment of which is illustrated in the accompanying drawings and specifically described hereinafter.

Of said drawings, Figure l represents the apparatus in vertical longitudinal section. Fig. 2 represents the same in end elevation, and Fig. 3 is a horizontal section taken on line 3 3 of Fig. l.

The exterior casing of the separator, as shown in the drawings, comprises an upper rectangular portion ot, in the top part of which a chamber ZJ is formed by a horizontal partition-plate o and a downwardly-inclined defiecto'r-plate d joining the back and sides of the casing. An outlet for dust-free air is provided in the top of the casing by a flue e, which extends down through-the partitionplate c, the latter having an opening c' sufli ciently large to form a passage-way around the flue,establishing communication between the chamber b and the interior of the casing with the purpose of admitting fine particles of dust to said chamber. `An outlet from Vthe lat-ter is provided at the backl where a nipple f proj ects from the casing j ust above the lower line of the deflector-plate (l to discharge into the atmosphere dust so fine as to b e almost imperceptible.

The current of dust-laden air and other matter, impelled by a fan or otherwise, enters the casing by a large pipe connection g at an upper corner of the front side of the casing and impinges against the deflector plate d, by which it is diverted downward. Other ver-h tically-arran ged de fleeting-plates 7i and h extend from the sides of the casing at an angle thereto, so as to have the eect of laterally diverting the current simultaneously with its downward deflection. y

For the purpose of classifying the material as the current is downwardly and laterally diverted a foraminous or perforated wall or partition 'i is arranged vertically between the deflector-plates d, 72 and 72,', with which it unites, said partition dividing from the mainy chamber of the casing an auxiliary chamber j, into which particles, such as sawdust, capable o f passing through the perforations of the partition may enter. y

Below vthe rectangular portion ct the casing takes the form of a hopper or chute k, the sloping back wall m of which unites with the side deiiectors h and h and with the foraminous partition t', extending therefrom on a sufficiently -sharp inclination to' insure the sliding down thereon of matter, such as shavings, so large as not to pass throughthe perforations of the partition. The sides of the hopper are preferably flat, the front side being vertical asa continuation of the front side of the upper portion of the casing, and the other sides slantin g and converging to the outlet openin g n, where a pipe connection is provided. An auxiliary hopper or chute ois provided as au appendage tothe chamber j, so arranged as to receive matter which passes the perforated partition and to discharge the same through a pipe connectiono at the bottom of the hopper.

A horizontal plate p may be secured within the casing between the main chamber of the IOO rectangular part thereof and the top. of the hopper 7c, said plate being connected with the sides of the casing by arms p and serving to prevent an upward current or the return of matter from the hopper, while at the same time giving ample space for downward passage of materials to be recovered.

Sufficient statements of operation have been coupled with the description of the construction of lthe apparatus here shown to make nnnecessary any further explanation as tothe inode of operation. Y

It is to be understood` that the invention herein disclosed may be embodied otherwise than as shown in the drawings and specification, and hence the appended claims are not limitedv to any oneV particular form ot' construction. i y y Having thus explained the nature of the in'- ven'tion and. described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made-or all of the modes of its use, it is'declared that what is claimed is- 1. A dust collector and separator comprising anv inclosure having at one side a lateral inlet for material to be separated, a perforated or foraminous vertical wall at the opposite side ot'- the inclosure, downward and lateral detlectors extending from topand side walls respectively of the inclosure to the top and the sides respectively of the said foraminous wal-l, separate downward deliveries on oppositesides of ther latter, and an air-outlet at the upper part of the inclosure.`

2. A dust collector and separator comprisl ing acasinghaving a lateral inlet at theupper,` part for material to be separated, a downing1from side to side of the casing and between a top and rear wall of the same, aver- -tical foraminous partition extending downwardly from said deflector providing a chamber between said rear Wall of the casing and said partition, a hopper-like appendage to said chamber having adischarge-outlet at the bottom, one or more lateral detlectors extend- I as described.

3. `A dust collector and separator comprising a casing having a lateral inlet at the up- Iper part for material to be separated, a detiector opposite said inlet and arranged to divert the current of material downwardly, a

perforated or foraminouspartition extending downwardly from said detlector, defiectors extending between the sides of the casing and the-said foraminous partition, tapering outlet-chutes on. opposite sides of said partition, and an air-outlet at the top part of the casing. v

4. A dust collector' and separator comprising a casin g having a substantially-rectangular upper portion with a top cliainberin-communication with vthe main portion ot the casing, an air-outlet flue in the top ot the casing f and extending through said chamber, a latl eral outlet from the latter, ak lateral` inlet to vthe rectangular part of the casing immediatelyybelow the top chamber, a detlector extending across the casing opposite said lateral inlet and forming part of the 'bottomof the `gsaid top4 chamber, said detiector being de- @signedl to divert the incoming current downf ward, a foraminous partition extendingdownward ly from said deflector, detlectors extending between the sides of the casing and said ,partition and designed to divert the current jlaterally, and tapering discharge outlets or ichutes on opposite sides partition.

warddefiector opposite said inlet and extendof the vforaminous In testimony whereof I have signed my name to'this specification, in the presence of vtwo subscribing witnesses, this 28th day of vfAugust, A..D. 1899.

ARTHUR W. BAN ISTER. 

